Pep Guardiola has hailed the attacking exploits of Liverpool‘s front three as “almost unstoppable” with his Manchester City side preparing for their Champions League quarter-final clash on Wednesday.sbo bz sbobet Liverpool are the only club who have so far beaten the Citizens in the Premier League, coming on January 14 when Jurgen Klopp’s side stuck four past the runaway league leaders.On the scoresheet that day were the aforementioned front three of Roberto Firmino, Mohamed Salah and Sadio Mane.Salah has taken the Premier League by storm this season since returning to England, scoring 37 goals in all competitions, while Mane and Firmino have netted 38 goals between themselves.“It’s not just Salah,” Guardiola told BBC Sport.“Mane and Firmino, all three, they are almost unstoppable. They’re fantastic.”When quizzed about his side’s loss to Liverpool, Guardiola said: “We lost a bit of control, we were involved in the environment of Anfield.“The way Liverpool play is so complicated for us. We know that. They are so quick, they are so good and it is tough.“But it is the quarter-finals of the Champions League so we cannot expect, at that level, that something is going to be easy.”